Let's put it this way. Trans people are researching the topic of sex and gender through active self-experimentation. They are claiming empiricism, and their direct experience makes them credible experts. They have produced facts backing their empirical claims, and certain of these claims are further backed up by other sources. You are wandering in, denying both facts and expertise and treating it as if it were crackpot theory, a simple matter of "believe whatever you want".

Now, denial of a factual argument is not hate in and of itself, but denying it on the premise of assigning no credit to the messenger, cherry-picking the weakest arguments and calling it "relativism" can be hateful, because it is indicative of a reality that is actively impeding the investigation of truth.